Kinetic models Constant Value Pseudo-first-order model K1 (1/min) 0.518   qe (mg/g) 2.251   r2 0.921 Pseudo-second-order model     qe (mg/g) 2.870   K2 (g/mg.min) 0.019   r2 0.996 Elovich model β (g/mg) 3.367   α (g/mg.min) 6.711   r2 0.926 Intraparticle diffusion model  Kid (min-1) 26.18   A 0.279   r2 0.924

Table 1: Adsorption kinetic model constants.